An ongoing debate has resurfaced regarding whether the next Samsung Galaxy S27 Ultra will use a Snapdragon or an Exynos chip. According to leaker kro, "for the first time, it seems that Samsung is considering putting an Exynos chip in a model Ultra." Among Galaxy S27 Ultra prototypes equipped with the Exynos 2700, some would include a slightly larger vapor chamber. The vapor chamber is a thin hollow plate containing a liquid that evaporates upon contact with the chip, then condenses further away, releasing its heat. The larger it is, the more the heat spreads, delaying the moment when the processor reduces its frequency to avoid overheating (the famous throttling discussed in all tests), during a long gaming session or an 8K video recording. Samsung has good reasons to focus on this point. On the Galaxy S26, only the S26 Plus manages to maintain an acceptable range with limited throttling to 80%. The S26 and S26 Ultra are much less good. The worst of the two is the S26 Ultra, whose Snapdragon 8 Elite Gen 5 no longer runs quickly at about 60% of its capabilities. The Korean media TheElec revealed on October 2 that Samsung had launched mass production of the Exynos 2700, the chip that will equip the future Galaxy S27, manufactured with its second-generation 2 nm process. Volumes are up by at least 10% compared to the Exynos 2600, and they are calibrated for the Galaxy S27, S27+ and the new S27 Pro, which should be sold in South Korea and Europe. For the Ultra, however, nothing is decided. According to TheElec, opinions differ internally. The System LSI division, which designs the Exynos, would very much like to see them in the Ultra. The mobile division (MX), which has the final say, is weighing performance, heat, and cost against the Qualcomm chip, likely the new Snapdragon 8 Elite Extreme Gen 6 (not to be confused with the Snapdragon 8 Elite Gen 6). Europeans have already experienced Ultra models with Exynos. The Galaxy S20, S21 and S22 Ultra sold in France used the in-house chips, but taking the example of the Exynos 990 in the S20 Ultra, it heated up more and lasted less than its Snapdragon version. Samsung then switched the entire Galaxy S23 line to Snapdragon in 2023, before the return of Exynos on the basic Galaxy S26.